Which HF rigs implement CESSB?

[Moleculo]

Today I saw a sneak peak release note about the next firmware release (r29) of the Elecraft K4 where Wayne indicated that they are updating the speech processing in the rig to include controlled envelope ssb. Are there other HF amateur rigs that implement this?

For reference, here's a technical article that describes cessb:

http://www.arrl.org/files/file/QEX_Next_Issue/2014/Nov-Dec_2014/Hershberger_QEX_11_14.pdf

 

[Moleculo]

So far my search as turned up FlexRadio as the only other brand with this feature. I found an older article that mentioned Apache Labs may be implementing it, but I couldn't find anything on their site.

For the uninitiated, this method of compression can add better than 2db to your ssb signal, which is significant!

 

[Moleculo]

I just found out that Apache also has CESSB capabilities. Wayne announced this week that the implementation of CESSB in the K4 is complete and will be in the next firmware beta release. They've said that their testing indicates up to 8db average power increase with CESSB enabled! Of course operator discretion will be important to ensure the audio quality is still there if you turn it up that much.

 

[nomadradio]

8db average power increase

Does it come with an extra fan or two? Multiplying average power to 7 (or so) times as high as before will definitely produce more heat.

73